Ralph and Jim are trying to push a large crate along a wooden floor. Ralph pushes with 150 lb of force and Jim with 208 lb of force just as the crate is about to move. The full crate weighs 625 lb. (yes, a FBD is always required)
a) What is the coefficient of friction? (2 dec. plc)

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.